Archibald e



(No Model.) A. E. ISAAGS,

' CORN PLASTER. r No. 565,901. Patanted Aug. 18 1896.

[16 t nessea'f [hvemar Wm m -UNITED STAT S PAT NT FFlCE,

ARCHI'BAL'D E. ISAACS, OF NEW YORK, a. n1.

. CORN-PLASTER.

' srscrrrcarronrotmm e of Letters Patent n 565,901, dated August 18, race.

I Application filed March Ill, 1896. Serial No. 582,735. (Ncsp'ecimena) V To allwhom may concern:

Be itknown t 1-, ARCHIBALD E. IsAAcs,

.a citizen of the United States, residing at 1 New York, in the county of New York and State of New York, have invented a new and useful device ,for the cure of come, callosities,.warts, or other skiuaffections of the feet,

or of any part of the body, of which the following is a specification. I 2

My invention relates to a device for the effective and convenient application of certain chemical substanceshereinafter describcd,to such local afiections of the skin as corns, cal losities,jwarts, or other abnormal conditions of the skin on any part of the body; and the object of the invention is to relieve the. pain due" to such affections and simultaneously bring about a removal of the growth or cure of the condition.

surface of my device. Fig. 2 shows the upper surface; and Fig. 3 shows avertical section the several drawings.

through its center, bringing all the -'diflerent parts into view. Fig. 4 shows -a similar crosssuch perforation beingdesignated as E.

p In the modified device show-11in Fig. 4.,A is a thin sheet of; some flexiblenon-elastic material, that may beof such size-or shape to accommodate itself to-thepart 'where it is to be applied.

B is a layer of adhesive material spread on the under surface of A, whereby it is made to adherc to any part of the body where it may. be applied.

O G is a flanged cupmade of guttapercha,

rubber, oiled silk, or some other impermeable material.. It is set into the aperture E of the 45 disk A, with its closed end 0 toward the upper surface of the disk, and its flange 0' extending over and covering. of the layer of adhesive material B on the r-rider surface of'the disk A. 7

D is the chem ical substance orcoinposition'.

with 'which the cup 0, is filled. This substance'is composed ofsalicylic acid orrsali- In the drawings accompanyingthis specification, Figure l showsa plan of the under cylic acid with cocaine, or"either-of'ithese comes in direct contact with the corn and is firmly held in this position by. the body of the corn-plaster A, which is firmly attached to the skin by its adhesive surface B. The cup 0, beingcomposed of impermeable ma terial and coming in direct contact with the skin throughout the whole of the circumference of its'open end by means or its flange 0', produces when applied to the skin a closed receptacle from which the contents, even if rendered fluid by the heat or moisture of the body, cannot escape.

The contents 1) of the cup 0 is composed principally of salicylic acid, which by being length of time causes disintegration of the substance of the cornand its final separation from the underlyinghealthy tissues, so that after-removal? of the device after a suflicient "length of time the corn may be found loose and can be removed by picking it off with the fingers.

' Cocaine or any of its salts may be mixedwith the salicylic acid for the purpose of relieving the pain due to the'corn itself or; to the effect of the salicylic acid, on the skin,

which sometimes. causes a burning sensation.

Relief to pain is also secured, as in the use of an ordinary corn-pl aster, by the shifting oflthe pressure of the shoe from the corn onto the body of the plaster A, while the corn sets in the central opening.. In this-device the opening is partly occupied by the cup 0 with its contents; yet there is space enough left to afiord relief from pressure ofthe shoe on the corn.

- The salicylic. acid and cocaine, if used, are the active principles of the composition, .but they" are incorporated. with enough of a mixture of gelatin and glycerin, or other suitable menstruum, to give bodyto the substance and cause it to adhere to and remain in its place'in the cup.

mixed with a combination of gelatin'and 1 kept .in direct contact with the corn for a I am aware that the use of salicylic acid for thepurpose eet iortli in the specification is not novel or original with me. 1 am also aware that a perforated dick of felt with an adhesive surface, such at the disk A, with its peyforation E and adhesive surface B, in the accompanying drawinge, is not HEW, but has been in extensive use for some time and. is known as cormplasten What 1 do claim as my invention, and desirc to-eecurc by Letters Patent, is-- A corn-plaster consisting of the combination of a flanged cup 0 O of impermeable material for holding a topical remedy D, with an annular disk A of flexible material having an afiheeive surface B, the body of the cup 0 setting into the aperture E of the disk A, and its flange C spreading over that part of the adhesive surface B immediately surrounding the aperture E, so that when in use the flange of the cup is held firmly in contact with the skin by the superimposed inner border of the annular disk, making a sealed inclosm'e from which the medicament, even if fluid, cannot escape.

ARCHIBALD E. KSAAUS.

Witnesses:

J Hum; HALPE'RN, H. SCHLUCTER. 

